Alert archive / Arkansas / Tornado Warnings in 1998

Tornado Warning 15, NWS Memphis, TN

April 13, 1998Clay County, Arkansas

NWS Memphis, TN issued this tornado warning at Apr 13, 1998, 7:02 PM CDT for Clay County, Arkansas. It was in force for 58 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 13, 1998, 7:02 PM CDT (00:02 UTC)
Expired
Apr 13, 1998, 8:00 PM CDT
In force
58 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Clay County, AR

What was reported inside it

TimeReportWhereRemark
Apr 13, 7:30 PM CDTHail 1.75Palatka, AR

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 13, 6:30 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.0 hours before the alert went out and 176 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 1998-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 652 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 1998-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
652 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

093 
WFUS1 KMEM 140004 RRA
TORMEM
ARC021-140100-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
702 PM CDT MON APR 13 1998
 
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PERSONS IN THE FOLLOWING LOCATION...
 
IN NORTHEAST ARKANSAS
 
   ...CLAY COUNTY
 
AT 700 PM..DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM WITH POSSIBLE
TORNADO OVER NORTHEAST RANDOPLH COUNTY FROM MAYNORD TO MINORCA MOVING TO
THE EAST AT 30 MPH. THIS STORM WILL BE NEAR SUCCESS..PALATKA AND DATTO
BY 715 PM..AND CORNING BY 730 PM.
 
.DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 13, 4:07 PM CDT, 2 hours 55 minutes before
ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-030-031-TNZ001>004-019>021-048>054-088>092-140900-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
407 PM CDT MON APR 13 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL
WEATHER SERVICE FORECAST OFFICE IN MEMPHIS TENNESSEE..INCLUDING
WEST TENNESSEE..NORTH MISSISSIPPI..EAST ARKANSAS AND THE MISSOURI
BOOTHEEL.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT FOR THE
ENTIRE COUNTY WARNING AREA INCLUDING EAST ARKANSAS..THE MISSOURI
BOOTHEEL..WEST TENNESSEE AND NORTH MISSISSIPPI.

AN UPPER LEVEL STORM SYSTEM WILL CONTINUE TO INTENSIFY AS IT MOVES
EASTWARD THROUGH THE MID-MISSISSIPPI VALLEY AND INTO THE GREAT
LAKES TONIGHT. STRONG SOUTHERLY WINDS AHEAD OF THIS SYSTEM HAVE
TRANSPORTED ABUNDANT GULF MOISTURE INTO THE REGION AND DESTABILIZED
THE ATMOSPHERE. IN ADDITION..THE VERTICAL WIND PROFILE HAVE
STRENGTHEN AND BECOME FAVORABLE FOR THUNDERSTORM DEVELOPMENT.

A COLD FRONT ASSOCIATED WITH THIS SYSTEM WILL MOVE ACROSS ARKANSAS
TONIGHT. THUNDERSTORMS WILL DEVELOP AHEAD OF THE FRONT AND MOVE
INTO THE MID-SOUTH LATER THIS EVENING. SOME OF THESE COULD POSE
THE THREAT OF SEVERE WEATHER. THE MAIN THREAT WITH THESE STORMS WILL
BE LARGE HAIL AND DAMAGING WINDS..ALTHOUGH WIND PROFILES WILL SUPPORT
A FEW TORNADOES.

LAW ENFORCEMENT AGENCIES...EMERGENCY MANAGEMENT OFFICIALS...STORM
SPOTTER GROUPS...AND OTHER INTERESTED CONCERNS SHOULD CONTINUE TO
MONITOR THE SITUATION AS ACTIVATION COULD BE REQUESTED LATER THIS
EVENING.
Special weather statement, Apr 13, 4:07 PM CDT, 2 hours 55 minutes before
ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-030-031-TNZ001>004-019>021-048>054-088>092-140900-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
407 PM CDT MON APR 13 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL
WEATHER SERVICE FORECAST OFFICE IN MEMPHIS TENNESSEE..INCLUDING
WEST TENNESSEE..NORTH MISSISSIPPI..EAST ARKANSAS AND THE MISSOURI
BOOTHEEL.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT FOR THE
ENTIRE COUNTY WARNING AREA INCLUDING EAST ARKANSAS..THE MISSOURI
BOOTHEEL..WEST TENNESSEE AND NORTH MISSISSIPPI.

AN UPPER LEVEL STORM SYSTEM WILL CONTINUE TO INTENSIFY AS IT MOVES
EASTWARD THROUGH THE MID-MISSISSIPPI VALLEY AND INTO THE GREAT
LAKES TONIGHT. STRONG SOUTHERLY WINDS AHEAD OF THIS SYSTEM HAVE
TRANSPORTED ABUNDANT GULF MOISTURE INTO THE REGION AND DESTABILIZED
THE ATMOSPHERE. IN ADDITION..THE VERTICAL WIND PROFILE HAVE
STRENGTHEN AND BECOME FAVORABLE FOR THUNDERSTORM DEVELOPMENT.

A COLD FRONT ASSOCIATED WITH THIS SYSTEM WILL MOVE ACROSS ARKANSAS
TONIGHT. THUNDERSTORMS WILL DEVELOP AHEAD OF THE FRONT AND MOVE
INTO THE MID-SOUTH LATER THIS EVENING. SOME OF THESE COULD POSE
THE THREAT OF SEVERE WEATHER. THE MAIN THREAT WITH THESE STORMS WILL
BE LARGE HAIL AND DAMAGING WINDS..ALTHOUGH WIND PROFILES WILL SUPPORT
A FEW TORNADOES.

LAW ENFORCEMENT AGENCIES...EMERGENCY MANAGEMENT OFFICIALS...STORM
SPOTTER GROUPS...AND OTHER INTERESTED CONCERNS SHOULD CONTINUE TO
MONITOR THE SITUATION AS ACTIVATION COULD BE REQUESTED LATER THIS
EVENING.

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 7:56 PM CDTTornado WarningMEGClay24 min
Apr 13, 10:02 PM CDTSevere Thunderstorm WarningMEGLawrence28 min
Apr 13, 10:15 PM CDTSevere Thunderstorm WarningMEGGreene45 min
Apr 13, 11:25 PM CDTSevere Thunderstorm WarningMEGCross50 min
Apr 13, 11:30 PM CDTSevere Thunderstorm WarningMEGMississippi50 min
Apr 14, 12:22 AM CDTSevere Thunderstorm WarningMEGCross48 min
Apr 14, 12:48 AM CDTSevere Thunderstorm WarningMEGCrittenden37 min

Nearby

Tornado Warnings in Arkansas, 1998Every tornado warning in 1998Tornadoes in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.